OK, just talked about it with my wife. You guys are absolutely right, I'm making this more complicated and hard to use than it needs to be (or she wants it to be). So I'm thinking Airport Express now, unless there is a different solution (at <$150) that you guys would recommend. Source will be the laptops with iTunes, which will have copies of the music library on each. We only have a few purchased songs.
I am the Doctor, and THIS... is my SPOON!